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July 25, 2024Applied Surface ScienceOpen Access

Tuning of optoelectronic performance of SrTiO3 by surface termination and thickness

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Authors

YLYichen LiuZWZiyi WangQMQingxiao Meng

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Overview

Experimental study reveals tunable optoelectronic behavior in homoepitaxial strontium titanate, highlighting its potential for high-performance ultraviolet photodetection.

Key Points

  • Homoepitaxial strontium titanate undergoes a thickness-dependent semiconductor-to-metal transition at 3.5 unit cells when modulating surface termination and layer thickness.
  • Oxide molecular beam epitaxy yields a charge carrier mobility of 56.5975 cm2 V-1s-1 alongside a room-temperature ON/OFF ratio of 6000 % under ultraviolet irradiation.
  • Highlights how defect engineering via photoluminescence and Hall effect measurements may enable high-performance ultraviolet photodetection across homoepitaxial oxide devices.

Cite This Study

Liu et al. (2024) studied this question.

synapsesocial.com/papers/68e5f0a8b6db64358758570fhttps://doi.org/10.1016/j.apsusc.2024.160821
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